Spark arrester



W. H. BOERUM.

SPARK ARRESTER.

APPLICATION FILED JUNE 25. 1918.

1,436,569. Patented Nov. 21, 1922 1 ZSHEETS-SHEET 1. F I 5...

W. H. BOERUM.

SPARK ARRESTER.

APPLICATION man JUNE 25, 1918.

Patented Nov. 21, 1922.

,1! A I; III I lilllvllll IIIIIII IIII'II v I 2 SHEETS-SHEET 2- Patented Nov, i922,

FYATES WILLIAM H. BOERUM, or YUKON, FLORIDA, assrenon or ONEHALF TO JAMES E.

wnnn, or YUKON, rnonrna.

SPARK ARRESTER.

Application filed June 25,

To all to 7mm. 2'25 may concern:

Be it known that 1, WILLIAM H. BOERUM, a citizen of the United States, residing at Yukon, in the county of Duval and State of Florida, have invented certain new and use-' ful Improvements in Spark Arresters; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in spark arresters, and has for one of its objects the provision of a device of this character to prevent the sparks from issuing from smoke stacks and chimney dues, and is especially adapted for arresting sparks from the tent fines, thereby obviating the danger of the sparks igniting a tent or inflammable roof.

Another object of this invention is the provision of an insert for a smoke stack, chimney or tent flue, having a foraminous member to prevent the spark from passing beyond the same, and which is adapted to be located in close proximity to the fire so that the heat therefrom will burn the carbon, soot and creosote deposits from the material of the device, thus preventing clogging of the draft.

A further object of this invention is the provision of means whereby the foraminous member can be conveniently cleaned without ren'ioving the device from the smoke stack, including all the tent fines.

A. still further object of this invention is the provision of a spark arrester of the abwe-stated character, which will be simple, durable and efficient, and which may be manufactured and sold at a comparatively low cost.

With these and other objects in View, aswill become more apparent as the description proceeds, the invention consists in certain novel features of construction, combination and arrangement of parts as will be hereinafter more fully described and claimed.

For a complete understanding of my invention, reference will be had to the following description and accompanying drawings, in which:

Figure 1 is a perspective view of a spark arrester constructed in accordance with my invention,

Figure 2 is a fragmentary vertical see- 1918. Serial No. 241,737.

tional view of the inserts, illustrating the arrester, I j a Figure 3 is a similar view, showing the arresterin an inoperative or cleaning posi tion, a

Figure 4 is a plan view of the arrester,

Figure 5 is a side elevation of a modified form of the invention, a

, Figure 6 is a transverse sectional view, taken on the line 6- -6 of Figure 5',

Figure 7 is avert-ical sectional View of my modified form of invention, illustrating how a portion of the arrester maybe cleaned while the remaining portion prevents the issuance-of the sparks through the insert.

Referring in detail to the drawings, the numeral 1 indicates an insert ada iited to be positioned between the sections of a smoke stack, tent tine and the like, and consists of end portions 2 and 3, which are adapted to be inserted within the ends of the adjoining sections of a smoke stack or tent line. The end portions 2 and 3 are connected by a rectangular portion 4, provided with a slot to receive the spark arresting frame 5, and has secured to one end a hand grip 6 projecting exterior-1y of the rectangular portion 4, so that the frame may be readily removed and replaced into the insert 1. A plurality of overlapping spark-arresting shutters 7 are pivotally mounted upon transversely extending rods 8 carried by the frame 5, and each consists of a frame 9 of substantially rectangular formation. covered by foraminous material. l0. The foraminous material 10 is preferably constructed of wire mesh, which is capable of withstanding considerable heat. The normal position of theshutters 7 are substantially horizontal, as clearly illustrated in Figure 2, so as to arrest the sparks and prevent them passing through the insert 1.

Substantially l -shaped rods 11 have one of their ends bent to form hooks 12, which engage over the free ends of the shutters 7, while the free ends of the other arms are pivoted to an operating rod 13. Pins or pivot forming members 1a are carried by the frame 5, and engage the substantially L-shaped arms 11 at their curved portions, so that upon sliding movement of the operating rod 18 the shutters will be moved into either a vertical or horizontal position according to the movement of said rod.

The operating rod 13 extends extericrly of the insert 1, and has formed thereon a handie 15, so that the operating rod can be readily reciprocated to swing the shutters 7 into vertical or horizontal position. By operating the rod 13 With considerable force, the shutters 7 Will be caused to hit against the frame 5 and dislodge soot and other foreign matter that may accumulate thereon, thus rendering the device capable of being cleaned Without removing the frame 5 from the insert 1. However, the frame may be removed if desired and the shutters 7 cleaned in any Well known manner.

Referring to my modified form of invention, it consists of an insert 16, consisting'oi' end members 17, which are adapted to be inserted Within the sections of a smoke stack, or end fine, and are connected by an interm'ediate portion 18; The intermediate portion 18 is secured to the end members 17 by interlocking the ends of said members, as illustrated at 19, but, however, any other form of connection may be readily employed if desired. The intermediate portion 18 is provided With oppositely disposed slots to receive a frame 20, which carries foraminous material 21. The frame 20 projects beyond the intermediate portion 18, so that a portion of the foraminous material may be cleaned, While the remaining portion of the foraminous material on the frame acts as an arrester Within the intermediate portion 18.

Hand grips 22 are removably secured to the ends of the frame 20, and provide means whereby the frame can be readily gripped for changing the portion of the shutter Within the intermediate portion 18 of the insert 16. By removing one of the hand grips 21 the frame 20 can be readily removed from the intermediate portion 18.

While I have shown and described the preerred embodiment o1 my invention, it Will be understood that minor changes in construction, combination and arrangement of parts may be made Without departing from the spirit and scope of the invention as claimed.

Having thus described my invention, What I claim is:

A spark arrester for a line, including a line casing having slots in opposite walls thereof, a screen trave sing the casing slidable in and removable from said slots, said screen adapted to project beyond one face of the casing a distance equal to the interior width or the casing, a marginal frame for said screen, and finger grips haying portions frictionally clasping the ends of said tr '5 and portions extending from said portions to abut the casing to limit the sliding movement of the screen.

In testimony whereof l ailix my signature in presence of two Witnesses.

WlLlQlAh l H. BOELUM.

CHAs. Gr. DAY. 

